Effect of Age Hardening on Phase Composition and Microhardness of V-Free and V-Alloyed High-Nitrogen Austenitic Steels; AIP Conference Proceedings; Vol. 2051 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2018 (AMHS’18)
| Parent link: | AIP Conference Proceedings Vol. 2051 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2018 (AMHS’18).— 2018.— [020183, 5 p.] |
|---|---|
| מחבר תאגידי: | |
| מחברים אחרים: | , , , , , , , , , , |
| סיכום: | Title screen Effect of age hardening regime (at the temperatures of 700 and 800°C for 10 min to 10 h) on phase composition and microhardness of high-nitrogen steels was investigated. Before age hardening treatments, specimens of V-free and V-alloyed steels, Fe-23Cr-17Mn-0.1C-0.6N (0V-HNS) and Fe-19Cr-22Mn-1.5V-0.3C-0.9N (1.5V-HNS), were water-quenched after 1200°C (for 0.5 h) to produce supersaturated solid solution of interstitial atoms (nitrogen and carbon) in austenite (7% ferrite in 0V-HNS, no ferrite and <5% VN precipitates in 1.5V-HNS were formed). V-alloying changes a kinetics of age-hardening in high-nitrogen steels. According to XRD data, aging at 700 and 800°C results in decomposition of austenite and ferrite in 0V-HNS and formation of duplex microstructure, which consist of high-nitrogen austenite, ferrite, Cr2(N, C) precipitates and intermetallic σ-phase. Such duplex microstructure consists of two types of grains: (1) austenitic grains with precipitates mainly along grain boundaries possess lower microhardness characteristics (about 3.5 GPa); and (2) decomposed multiphase grains have high microhardness (4.5-5.5 GPa depending on aging duration). After aging of vanadium-containing steel at 700 and 800°C, rather homogeneous composite structure forms, which consists of high-nitrogen austenite, ferrite and (V, Cr) (N, C) particles randomly distributed both on grain boundaries and in grain bodies. This stricture possesses high microhardness values about 4.0-4.5 GPa. Independently on age hardening regime and steel composition, the most pronounced effects of hardening occur during short-time age hardening regimes (0.5-1 h). Режим доступа: по договору с организацией-держателем ресурса |
| שפה: | אנגלית |
| יצא לאור: |
2018
|
| נושאים: | |
| גישה מקוונת: | https://doi.org/10.1063/1.5083426 |
| פורמט: | MixedMaterials אלקטרוני Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=659194 |
MARC
| LEADER | 00000nla2a2200000 4500 | ||
|---|---|---|---|
| 001 | 659194 | ||
| 005 | 20231101135049.0 | ||
| 035 | |a (RuTPU)RU\TPU\network\27654 | ||
| 035 | |a RU\TPU\network\27652 | ||
| 090 | |a 659194 | ||
| 100 | |a 20190124a2018 k y0engy50 ba | ||
| 101 | 0 | |a eng | |
| 105 | |a y z 100zy | ||
| 135 | |a drcn ---uucaa | ||
| 181 | 0 | |a i | |
| 182 | 0 | |a b | |
| 200 | 1 | |a Effect of Age Hardening on Phase Composition and Microhardness of V-Free and V-Alloyed High-Nitrogen Austenitic Steels |f G. Maier [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 11 tit.] | ||
| 330 | |a Effect of age hardening regime (at the temperatures of 700 and 800°C for 10 min to 10 h) on phase composition and microhardness of high-nitrogen steels was investigated. Before age hardening treatments, specimens of V-free and V-alloyed steels, Fe-23Cr-17Mn-0.1C-0.6N (0V-HNS) and Fe-19Cr-22Mn-1.5V-0.3C-0.9N (1.5V-HNS), were water-quenched after 1200°C (for 0.5 h) to produce supersaturated solid solution of interstitial atoms (nitrogen and carbon) in austenite (7% ferrite in 0V-HNS, no ferrite and <5% VN precipitates in 1.5V-HNS were formed). V-alloying changes a kinetics of age-hardening in high-nitrogen steels. According to XRD data, aging at 700 and 800°C results in decomposition of austenite and ferrite in 0V-HNS and formation of duplex microstructure, which consist of high-nitrogen austenite, ferrite, Cr2(N, C) precipitates and intermetallic σ-phase. Such duplex microstructure consists of two types of grains: (1) austenitic grains with precipitates mainly along grain boundaries possess lower microhardness characteristics (about 3.5 GPa); and (2) decomposed multiphase grains have high microhardness (4.5-5.5 GPa depending on aging duration). After aging of vanadium-containing steel at 700 and 800°C, rather homogeneous composite structure forms, which consists of high-nitrogen austenite, ferrite and (V, Cr) (N, C) particles randomly distributed both on grain boundaries and in grain bodies. This stricture possesses high microhardness values about 4.0-4.5 GPa. Independently on age hardening regime and steel composition, the most pronounced effects of hardening occur during short-time age hardening regimes (0.5-1 h). | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | 0 | |0 (RuTPU)RU\TPU\network\4816 |t AIP Conference Proceedings | |
| 463 | 0 | |0 (RuTPU)RU\TPU\network\27575 |t Vol. 2051 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2018 (AMHS’18) |o Proceedings of the International conference, 1–5 October 2018, Tomsk, Russia |f National Research Tomsk Polytechnic University (TPU); eds. V. E. Panin, S. G. Psakhie, V. M. Fomin |v [020183, 5 p.] |d 2018 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a упрочнение | |
| 610 | 1 | |a фазовый состав | |
| 610 | 1 | |a микротвердость | |
| 610 | 1 | |a легированные стали | |
| 610 | 1 | |a аустенитные стали | |
| 701 | 1 | |a Maier |b G. |g Galina | |
| 701 | 1 | |a Astafurova |b E. |g Elena | |
| 701 | 1 | |a Moskvina |b V. |g Valentina | |
| 701 | 1 | |a Melnikov |b E. |g Eugene | |
| 701 | 1 | |a Astafurov |b S. |g Sergey | |
| 701 | 1 | |a Tumbusova |b I. |g Irina | |
| 701 | 1 | |a Fortuna |b A. |g Anastasia | |
| 701 | 1 | |a Panchenko |b M. |g Marina | |
| 701 | 1 | |a Mironov |b Yu. |g Yuri | |
| 701 | 1 | |a Mirovoy |b Yu. |g Yuri | |
| 701 | 1 | |a Galchenko |b N. |g Nina | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет (ТПУ) |c (2009- ) |2 stltpush |3 (RuTPU)RU\TPU\col\15902 |
| 801 | 2 | |a RU |b 63413507 |c 20190124 |g RCR | |
| 856 | 4 | |u https://doi.org/10.1063/1.5083426 | |
| 942 | |c CF | ||